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The RV Owner's Bible cover
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ROAD EDITION · 2026 · BY BRUCE TANNER

The RV Owner’s Bible

Every system on your rig — what breaks first, what the shop will charge you, and the fifteen-dollar fix.
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Fifteen years of full-time RV living and a diesel tech's career — written down.

Name's Bruce Tanner. My rig has 280,000 miles on it and it has never left me on the shoulder — and that's not luck, it's twenty-dollar parts replaced on Tuesday afternoons instead of four-hundred-dollar emergencies on Friday nights. I spent half my working life as a fleet diesel tech and the last fifteen years living full-time in campgrounds, where I've become the guy three doors down who comes and looks at it.

Here's what fifteen years of coming-and-looking-at-it taught me: the parts that actually stop an RV cost between four and forty dollars, almost every time. The $340 mobile-tech call was a nine-dollar strainer. The $1,180 furnace board was a fifteen-dollar switch. The eleven-thousand-dollar water damage was a fifteen-dollar tube of sealant. The failure was cheap, the failure was findable, and nobody ever showed the owner the right order to look.

This book is the right order. Every system on your rig — roof, AC, furnace, fridge, batteries, water, tanks, brakes — walked the same honest way: how it actually works, how it fails, what the shop charges versus what the part costs, which fixes are yours, and which ones I want you to hand to a licensed pro. Because knowing your rig isn't about never writing a check. It's about never writing one blind.

What's Inside

Thirteen chapters. Every one follows the same shape: how the thing actually works in plain words, how it fails in the order failures actually happen, the shop price next to the part price, and exactly where the do-it-yourself line sits.

1
The 280,000-Mile Education
Why RVs bleed money — the $340 strainer rinse, the $1,180 board that was a $15 switch, and the fleet-tech mindset that ends it.
2
The Chain of Permissions
The single most useful idea in the book — how every system decides to say yes, and how to find the cheap link that said no.
3
The Roof
Where rigs actually die. The $15 tube that stands between you and five figures, and the silicone mistake that ruins roofs forever.
4
Air Conditioning: Twice as Cold
There is no "recharge." Delta T, the $10 coil cleaning shops bill $300 for, the secret gasket leak, and the duct nobody checks.
5
The Furnace: Twice as Hot
The full permission chain, the 60-second Startup Listen Test that names the failed part from outside, and the CO line you never cross.
6
The Fridge That Runs on Fire
How absorption cooling actually works, the leveling law, the vent stack, the recall you check today, and the smell that means OFF.
7
Batteries & the Converter
The quiet boss behind half the "broken appliances" in the book. The 60-second health check, why batteries are murdered young, and the surge protector that pays for itself.
8
Fresh Water
Pump, pipes, and the water heater's $15 sacrificial organ nobody mentions. Plus the bypass-valve trap that gets thousands every spring.
9
Holding Tanks
Sensors that lie, smells that don't, and the three honest causes of every tank problem — with the folklore aisle debunked.
10
Tires, Bearings & Brakes
The physics chapter. Date codes, the temperature walk that catches failures weeks early, brake gain, and the strictest DIY lines in the book.
11
Winter
The $20, 90-minute ritual that beats the $500–2,000 spring thaw-out bill — plus the real art of living aboard in the cold.
12
The Dealer Playbook
How the meter actually runs, the phrases that cost people money, and — just as honestly — when the shop is right and worth every dollar.
13
The Owner's Registry
The pages you'll use monthly: every schedule, the $200 toolkit, the laminated walkaround, and the logbook that raises your resale.
79pages
13chapters
280Kmiles, never on the shoulder
$100ssaved on the first fix

Get The RV Owner's Bible

Instant PDF download. Read it in a chair tonight; run the Listen Test in the campground tomorrow morning.

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Straight Answers

I'm not mechanical. Is this over my head?
No. Chapter 2 teaches one idea — the chain of permissions — and every chapter after runs on it. The tools are a $12 multimeter and a $20 thermometer, and I walk every step the first time we use them.
Will this replace my shop?
It'll replace the blind invoices. You'll fix the $15 stuff yourself — which is most of it — and when a job genuinely belongs to a licensed tech, I say so plainly and tell you why. Propane, high voltage, and brakes get the strictest lines in the book.
My rig is old / new / a trailer / a motorhome. Does it apply?
Yes. The book teaches systems, not model years — roof, AC, furnace, absorption fridge, 12-volt, water, tanks, running gear. Where towables and motorhomes differ (bearings, brakes), the book splits and covers both.
What do I get?
A 79-page PDF, downloadable the second you buy, readable on your phone, tablet, or computer — with the walkaround checklist and registry pages made to print.